symptoms of a bad ABS module

Symptoms Of a Bad ABS Module

You have the security and safety you require when driving with an ABS control module that is functioning properly. If this component starts to malfunction, you become more likely to get in an accident, especially if you quickly need to stop.  So, how do you tell when this component fails? Well, let’s find out!


Symptoms Of A Bad ABS Module

symptoms of a bad ABS module

Locking Wheels

When traction is lost, the ABS control module prevents the wheels from locking up. The information required to prevent the wheels from locking, however, is inaccurate because this component fails. If your wheels start to lock up when traction is lost, the ABS control module may be responsible. Usually, you won’t notice the issue unless you use the brakes suddenly. Otherwise, a locked brake caliper may be responsible if the wheel locks up repeatedly.

ABS Warning Light

Modern vehicles come equipped with an ABS dashboard light to alert you of any issues. A bad ABS control module is one of the most common reasons for the light. The ABS symbol is illuminated in amber on more recent models. Older models, however, lack this specific light. Instead, they might use the Check Engine Light.  When the ABS light comes on, the system may completely stop working. You shouldn’t drive without the ABS, even if you can. It is an essential safety measure designed to protect you.

Increased Braking Effort

When you press on the brake pedal, you ought to come to a complete stop. The effort required to stop, though, might become more obvious.  You can find that as time goes on, applying the brakes to stop your car and depressing the pedal requires more effort.

Read More: Understanding ABS sensor

Speedometer Failure

There are a few uncommon situations where the speedometer is impacted by an ABS control module failure. Either the wrong speed will be displayed, or 0 mph will be the needle’s resting position. The check engine light or brake light may then turn on. Even if those indicators don’t illuminate, a malfunctioning speedometer is a valid reason to get your car inspected.

Unresponsive Brake Pedal

You want to be sure that the car will stop when you press the brake pedal. However, a defective ABS control module can make stopping more challenging. You could initially notice the heightened braking effort mentioned above. This effort will intensify over time and could eventually limit your ability to operate the brake pedal completely.


When the ABS module is defective, it may result in the loss of anti-lock braking, turn on the ABS warning light, cause unpredictable brake behavior, lessen the effectiveness of the traction control system, produce diagnostic trouble codes, and produce odd noises coming from the ABS pump or motor, all of which may have an impact on the safety and performance of the vehicle.


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